Flowserve 1888 Parallel Slide Gate Valve Manual de usuario

Manual No. 1888-PS Issued: September 15, 2006 Revision A INSTRUCTION MANUAL for ½" thru 2" 1888 lb. Parallel Slide Gate V

(j) Place the gland bolts (210) into the slots and through the flange gland (133) and tighten the gland stud nuts (234) (see Section 11.0)

9.3 Lapping Procedure After the valve has been disassembled, a visual inspection of the seating surfaces of the Discs (004) and Seat Rings (01

10.0 STORAGE REQUIREMENTS The valves have been shipped in the closed position. Upon receipt of the valves at their destination, the crate

11.0 BOLTING TORQUE VALUES At intervals of not more than six months, check the tightness of all bolting. The recommended torque values for all bo

Table of Contents 1.0 Physical Description and Operation of Equipment 2.0 Design Conditions 3.0 Operating Conditions 4.0 Test Condition

Manual No. 1888-PS Revision Sheet Revision Date Changes Description - 02/03/2004 Original Issue A 9/15/2006 Section 11, Rev.

1.0 PHYSICAL DESCRIPTION AND OPERATION OF EQUIPMENT 1.1 Parallel Slide Gate Valves The Flowserve Corporation Parallel slide gate valve desig

4.1.3 A backseat leakage test at 110% of the 100°F pressure rating. 4.1.4 A packing test at 110% of the 100°F pressure rating. 5.0 OPERA

6.3 Pre-Operational Checks 6.3.1 After installation the operation of manual valves should be verified by closing the valve. The valve should s

9.0 MAINTENANCE INSTRUCTIONS 9.1 The following instructions cover the disassembly and reassembly of a gate valve. Typical valve configuration is

the stuffing box. Removal of the packing is best accomplished with a packing hook or similar device. (i) Loosen the gland retainer set

(b) Check the seating surfaces to determine that scratches or minor imperfections do not exist on the discs or seat rings. If any are